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EF0 tornado in Monroe County, Kentucky

Tornado December 11, 2021 · Monroe County, Kentucky

EF0
Rating
5.4 mi
Path length
75 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 75 yards (0.04 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

This tornado developed in Clay County, Tennessee, on the northeast side of Hermitage Springs, before tracking northeastward and crossing into Monroe County, Kentucky (see Storm Data from the Nashville, Tennessee office for more information on the beginning portion of this tornado in Tennessee). A barn and several trees were damaged along Beech Grove-Boles Road, with estimated maximum wind speeds of 85 mph. Additional trees were damaged along Rhoton Cave Road and near the intersection of Highways 163 and 216 in Hestand. The tornado damaged a barn near the intersection of Vernon Road and Bailey Cemetery Road before lifting.

The wider storm

Strong southern winds brought warm temperatures and plenty of moisture into an environment of strong wind shear ahead of an advancing cold front. This resulted in unusually warm temperatures for a December day and the ingredients to produce a historic tornado outbreak and flash flooding. This included multiple long track tornadoes. Central Kentucky saw 18 tornadoes that injured 96 and killed 18. An additional death occurred in a flash flood.

Began near Boles (36.6184, -85.6811).

Other tornadoes from the same storm system

12 more tornadoes the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 996925. Narratives are written by the National Weather Service forecast office that issued the report.

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